If you think there’s something romantic
about fireflies glowing on a warm summer night… You’d be right. But what you don’t see, is the dark side
of this luminous display. Firefly flashes are a secret code, a language
of light. The light comes from a masterful bit of chemistry. A bioluminescent reaction that generates light
but no heat. So what are they saying? Well, males on the wing are advertising themselves
to females with a bit of sexy skywriting. Take the common Eastern firefly. His signature move? A fishhook-shaped maneuver. Which is why his species is sometimes called
the “Big Dipper.” Her reply is more subtle: a single, slow pulse
from her heart-shaped lantern. Our “Big Dipper” comes bearing a “nuptial
gift,” a present of more than 200 assorted nutrients… kind of like a box of chocolates. Here’s the handoff. Some are lucibufagins — defensive chemicals
fireflies secrete to ward off predators like spiders and birds. These defensive chemicals may help protect
her. Firefly codes are so reliable that anyone
can speak the language. But we’re not the only codebreakers listening
in. Meet Photuris. She’s also a firefly — a larger, stronger
one than the Big Dippers. But she has a weakness. Her species can’t make its own lucibufagins. They have fewer defenses against predators. So she sets a trap to get some. She mimics the glow of other firefly females
— luring in the males of that species. When Mr. Big Dipper shows up with his chemical
gift, she moves in… sucks up those defensive chemicals that she
desperately needs… …then makes a meal of the rest of him. Most fireflies don’t even eat during the
few weeks they spend as adults. But he’s not totally defenseless. If she’s not quick enough, he can secrete
a gooey compound that sticks in her jaw and lets him escape. Another gift from the master chemist. Hey there, it’s Lauren. I know you see that ‘Subscribe’ button there. Here’s what it’ll get you. New Deep Look episodes every two weeks. Keep up with all the weird, gross, and wonderful
things we’re working on. Thanks, and see you soon.
You would not believe your eyes if you saw some fireflies, eating all around other fireflieees
Sounds like my ex.
Am I the only one that got scared when the very first bug crawled on the screen ? …. just wondering
So that's that sticky goo I had on my hand at 4 years old when I held a firefly. Eek
Who would’ve thought such actions were happening in the life of a firefly!
Yes, l heard about this as a kid on Mr. Wizard’s World.
Traumatic :'v
2:02 Almost had a heart attack
This aint right nature u scary
* sees and reads title thumbnail *
Me: I will never look at fireflies the same again
My boy whipping and dipping that’s right ?
if only we cand fend off thots the same way
1:30 KIDS DONT LOOK
1:31 hey how you doin little mama lemme whisper in your ear.
DISGUSTANG!
So he nuts ?
We gonna ignore the fact my man busted a nut in her mouth?
This didn't happend in Tlou
a woman is a woman …no matter the species…?? hello ladies love u all lol…
Biggest "no u" in nature
You could say she was sucking him out
I want to see fireflies too
There's none here in my country
How sad
Is this horror ?
That is so intresting wow!
Wow!!!!!! That was so very intriguing!
Anybody here jumpscare as soon ??? the bug start crawling ??? @:03-:06
2:24 yikes the music is so Erie
What’s kinda of Camera that’s they’re been using ,I’ll just wanna know where I can buy this from??
Man i wish i knew this before i crammed them all in the same jar and just made it easier for them.
Oh?oh?oh no?
I regret watching that in full screen
We call these lighting bugs in Philadelphia.
I mean sometimes humans eat other humans.
Accurate of what women do to men after getting married.
That’s what they looks like? I’d be like: bih get yo canniabal ah outta here
Was expecting metal music to start playing when the male started to get eaten with the girls voice starting to get more aggressive as it plays out.
When u take eat me out seriously
Just like me skeet and skedaddle
Grave of the fireflies part 2 lookin good
I was in the dark high af and there was a spider in my room that I lost so when the intro started I almost had a mini heart attack
Way to mess up my childhood
He think she want head but she literally want head
you would not believe your eyes~
*fireflies eat other fireflies*
never mind….
I've also been know to secrete fluid if women are not fast enough
"Another gift from the master chemist "
k i dont think i’ll be doing my dream now…
dream:C’MON I KNOW YOU WANT A FIREFLY WEDDING D:< like if you want a firefly wedding -3-
The video title though
That looked like a doll
Thank you for ruining my appetite
3:02 so he came in her mouth…
I have fly phobia because I hate the buzzing and I hate flies but when I'm on deep look I'm not so afraid of flies or bugs that much
Girl:*Sighs* Fireflies are just so romantic.
Guy: I don't know 'bout all that.
ewww
When u trying to date a girl but she a trap but also a cannibal that wants to suck out your fluids
its more like dubstep than jazz 😀
Y em I here
you would not believe your eyes, you would not believe your eyes
you would not believe your eyes
“I know, I know you belong to somebody new, but tonight you belong to meeeee…” ??
Murder
Did she just say our big Dicker. I love this channel.
I felt my stomach turned upside down when she ate the other one.
Upload this to bestgore
I could not believe my eyes
YOU WONT BELIEVE YOUR EYES IN A MILLION FIREFLIES
I've never seen a firefly in my whole life.
2:22 that's what my wife did
So… Fireflies are canniballs
He got catfish:(
CANNIBALISM!!
Disco bug! ? https://youtu.be/0JYOS3yfZzw
Cannibalism 100
this is terrifying
Straight up left a load in her mouth and left
DID THE FIREFLIES CONSENT TO FILM THEM WHEN THEY ARE DOING THE DEED?
What are they saying : I WANNA EAT YOU.
i dont want to watch it i dont want to watch it i dont want to watch it
clicks
Male: Karen lemme smash
Female: Nahh… I just ate.
2:06 That thing startled me
BRUTAL DEATH
She protec
She atac
But most of all
She wants snac
It's the circle of liiiiiiiiiiiiii,- OH I didn't see that coming.
Omg so scary
i wonder how the film this do they just set millions of cameras and wait for a firefly to be caught in one of the cameras doing this exactly thing i’m not sure but what ever way they do it i love it
thats cool but how about this:
n o
Male big dipper firefly:Lemme smash
Female firefly:nu—nOm NoM
Her:Lemme eat u lemme eat u
Him:You fool *nuts in her mouth*
Her:Not bad.
you would not belive you're eye's
Amazing
at 00:04 I nearly smashed my phone thinking was some bug walking across my screen …
Oh wow didnt know fireflies eat other fireflies
That was horrible ?
You would not believe your eyes
AW SHE HAS A HEART SHAPED LIGHT 🙁
"You wont beleive your eyes, if 10000 fireflies. Filled up the sk-"
10000 fireflies:
ITS FRICK TIME
Bro I swear every single one of these videos has the funniest top comments
I thought they was Harmless
Tbh her voice is so soothing, every science and info channel would wish to have her as a narrator xD
0:03 its night so i thought there was a bug on my screen and holy god i had the largest panic attack
3:04 how to clean teeth
Do firefly bite human? I just know they glow